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3 years ago

Math help????????????

Mathematics

1 answer:

Radda [10]3 years ago

4 0

1) x= 5
2) y= 30
3) x=15

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The local pizza placed has placed a new circular sign above the restaurant. The circumference of the sign is 37.68 feet, and the

zlopas [31]

Answer:

Step-by-step explanation:

The circumference of a circle can be described as the linear distance round the circle

The circumference of a circle = 2πr or πD

π = 3.14

r = radius

d = diameter

the diameter is the straight line that passes through the centre of a circle and touches the two edges of the circle.

π = circumference / 2r or circumference / D

37.68 / 12

5 0

3 years ago

a surveyor measures the distance to the two landmarks as shown in the diagram what is the distance d. between the landmarks

Inessa [10]

<h3>The distance between two landmarks is 123 meters</h3>

<em><u>Solution:</u></em>

We have to find the distance between two landmarks

<em><u>Use the law of cosines</u></em>

The third side of a triangle can be found when we know two sides and the angle between them

$c^2 = a^2 + b^2 - 2ab\ cos c$

Here, angle between 90 meters and 130 meters is 65 degrees

From figure,

a = 90

b = 130

c = d

Therefore,

$d^2 = 90^2 + 130^2 - 2(90)(130)\ cos 65\\\\d^2 = 8100 + 16900 - 23400\ cos\ 65\\\\d^2 = 25000 - 23400 \times 0.4226\\\\d^2 = 25000 - 9889.267\\\\d^2 = 15110.73\\\\d = 122.92\\\\d \approx 123$

Thus, the distance between two landmarks is 123 meters

8 0

4 years ago

Can someone helpppppppp

ankoles [38]

Answer:

f(-2) = -3

Step-by-step explanation:

When x = -2 we want the value of y

We use the closed circle value ( open circle does not have a value)

f(-2) = -3

6 0

3 years ago

Which of the following statements is true for the equation 2x+2=3x+1? The equation is never true. The equation is only true for

ipn [44]

346788887bh u h u u h j

7 0

3 years ago

Is this correct ? Help

Lera25 [3.4K]

Answer:

Yes that is the correct answer

Step-by-step explanation:

6 0

3 years ago